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AP-1 was first discovered as a TPA-activated transcription factor that bound to a cis-regulatory element of the human metallothionein IIa promoter and SV40. [3] The AP-1 binding site was identified as the 12-O-Tetradecanoylphorbol-13-acetate response element (TRE) with the consensus sequence 5’-TGA G/C TCA-3’. [4]
The AP-1 binding site, also known as the AP-1 promoter site, is a DNA sequence to which AP-1 transcription factors are able to bind. [1] The AP-1 binding site, in humans, has a nucleotide sequence of ATGAGTCAT, where A corresponds to adenine, T corresponds to thymine, G corresponds to guanine, and C corresponds to cytosine.
These genes encode leucine zipper proteins that can dimerize with proteins of the JUN family (e.g., c-Jun, JunD), thereby forming the transcription factor complex AP-1. As such, the FOS proteins have been implicated as regulators of cell proliferation, differentiation, and transformation. [5]
These genes encode leucine zipper proteins that can dimerize with proteins of the JUN family, thereby forming the transcription factor complex AP-1. As such, the FOS proteins have been implicated as regulators of cell proliferation, differentiation, and transformation.
T-cell receptor (TCR) stimulation causes the dephosphorylation of NFAT which in almost every kind of T cell then forms a complex with AP-1 (except in Tregs). This complex depending on the cytokine context then activates the key transcription factors of the distinct T cell subpopulations: T-bet for Th1, GATA3 for Th2, RORγ for Th17 and BATF for ...
Network motifs can be regarded as repetitive topological patterns when dividing a big network into small blocks. Previous analysis found several types of motifs that appeared more often in gene regulatory networks than in randomly generated networks. [13] [14] [15] As an example, one such motif is called feed-forward loops, which consist of ...
Three groups of transcription factors are known to be important in human cancer: (1) the NF-kappaB and AP-1 families, (2) the STAT family and (3) the steroid receptors. [ 64 ] Below are a few of the better-studied examples:
Activating transcription factor, ATF, is a group of bZIP transcription factors, which act as homodimers or heterodimers with a range of other bZIP factors. [1] First, they have been described as members of the CREB/ATF family, [2] whereas it turned out later that some of them might be more similar to AP-1-like factors such as c-Jun or c-Fos. [3]